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post #1 of 6 (permalink) Old 08-31-2006, 12:14 PM Thread Starter
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Stupid question from Stupid Newbie

I have a 98 Mark VIII (base) and I have done the following:

4.10 gears
One piece drive shaft
Modified the intake

And thank The Good Lord Above I still have a few hundred burning a hole in my pocket that my woman don't know about. So, I need your advice. Please.

What will give me more of a kick in the seat?

SCT Calibrator
Or ________ (enter your suggestion there)

Car is very well maintained, purchased it from the Chief of Police and he had that thing maintained on our tax dollars (he admitted it) at the yard.
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post #2 of 6 (permalink) Old 08-31-2006, 12:18 PM
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A high setting j-mod might snap you back on a shift, but I'd say spend the rest of your money on a tune. If you don't even have a tune, I can't see how your trans is shifting right with the gear change. You'd be hitting the rev limiter every time you go WOT, but the tune will correct that and give you a few more ponies to boot.


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post #3 of 6 (permalink) Old 08-31-2006, 12:20 PM
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J-mod and tranny cooler?


These are highly engineered precision vehicles, the first step in diagnosing the problem is to strike the suspected offending part sharply and repeatedly with a blunt object, then re-test.
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post #4 of 6 (permalink) Old 08-31-2006, 12:40 PM
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trans cooler, jmod, and an xcal2 from lonnie.

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1996 Braincoated, all Aluminum PI powered and obscenely loud Pearl White Tbird [email protected] AKA Dyrdek.
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post #5 of 6 (permalink) Old 08-31-2006, 12:40 PM
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Tune, most definitely. And not just any tune, but one by Lonnie at He is a master.

1997 Thunderbird Sport
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1997 T-Bird GT 4.6
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Mark VIII Torque Converter - J-Modded 4R70W transmission - Mark VIII Aluminum Driveshaft - 3.73 gears
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post #6 of 6 (permalink) Old 08-31-2006, 01:04 PM
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A good transmission and a converter. You haven't experienced the potential of a 4.6 engine unless you have a seriously high stall converter (3800+)
I wouldn't bother doing that on a stock transmission however it can be a huge waste of money. I'd suggest for an easy quick fix get a tune, but if you do what I suggest you will want to tune afterwards.

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